Surface Modification of Porous Photoelectrode Using Etching Process for Efficiency Enhancement of ZnO Dye-Sensitized Solar Cells

Table 2

Photovoltaic parameters and dye adsorption of ZnO DSSC fabricated on etched films.

Sensitizer	Etching time (min)	(mA/cm^2)	(V)	FF	PCE (%)
EY	0	3.48 ± 0.08	0.45 ± 0.01	0.42 ± 0.01	0.67 ± 0.02
	1	4.22 ± 0.06	0.45 ± 0.01	0.37 ± 0.03	0.70 ± 0.05
	2	4.77 ± 0.47	0.44 ± 0.01	0.39 ± 0.04	0.80 ± 0.02
	3	4.35 ± 0.30	0.44 ± 0.01	0.35 ± 0.01	0.66 ± 0.05
N719	0	6.61 ± 0.26	0.57 ± 0.01	0.48 ± 0.02	1.80 ± 0.01
	1	6.87 ± 0.25	0.56 ± 0.01	0.47 ± 0.01	1.81 ± 0.01
	2	7.15 ± 0.32	0.57 ± 0.01	0.49 ± 0.02	2.00 ± 0.01
	3	6.96 ± 0.13	0.57 ± 0.01	0.47 ± 0.01	1.85 ± 0.08